Home / 70,467.20-105,585.60-58,716.80

Finding the Fourth Proportional to 70,467.20, 105,585.60 and 58,716.80

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Solution

The fourth proportional to 70,467.20, 105,585.60 and 58,716.80 is: 87,979.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,467.20 : 105,585.60 = 58,716.80 : x
  2. Step 2: Convert to fraction form
    70,467.20/105,585.60 = 58,716.80/x
  3. Step 3: Cross multiply
    70,467.20x = 105,585.60 × 58,716.80
  4. Step 4: Simplify right side
    70,467.20x = 6,199,648,558.08
  5. Step 5: Solve for x
    x = 6,199,648,558.08/70,467.20
  6. Step 6: Final answer
    x = 87,979.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.